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  <div class="section" id="additional-clean-files">
<span id="prop_tgt:ADDITIONAL_CLEAN_FILES"></span><h1>ADDITIONAL_CLEAN_FILES<a class="headerlink" href="#additional-clean-files" title="Permalink to this headline">¶</a></h1>
<p>A <a class="reference internal" href="../manual/cmake-language.7.html#cmake-language-lists"><span class="std std-ref">;-list</span></a> of files or directories that will be
removed as a part of the global <code class="docutils literal notranslate"><span class="pre">clean</span></code> target.  It can be used to specify
files and directories that are generated as part of building the target or
that are directly associated with the target in some way (e.g. created as a
result of running the target).</p>
<p>For custom targets, if such files can be captured as outputs or byproducts
instead, then that should be preferred over adding them to this property.
If an additional clean file is used by multiple targets or isn’t
target-specific, then the <span class="target" id="index-0-prop_dir:ADDITIONAL_CLEAN_FILES"></span><a class="reference internal" href="../prop_dir/ADDITIONAL_CLEAN_FILES.html#prop_dir:ADDITIONAL_CLEAN_FILES" title="ADDITIONAL_CLEAN_FILES"><code class="xref cmake cmake-prop_dir docutils literal notranslate"><span class="pre">ADDITIONAL_CLEAN_FILES</span></code></a> directory
property may be the more appropriate property to use.</p>
<p>Relative paths are allowed and are interpreted relative to the
current binary directory.</p>
<p>Contents of <code class="docutils literal notranslate"><span class="pre">ADDITIONAL_CLEAN_FILES</span></code> may use
<span class="target" id="index-0-manual:cmake-generator-expressions(7)"></span><a class="reference internal" href="../manual/cmake-generator-expressions.7.html#manual:cmake-generator-expressions(7)" title="cmake-generator-expressions(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">generator</span> <span class="pre">expressions</span></code></a>.</p>
<p>This property only works for the <span class="target" id="index-0-generator:Ninja"></span><a class="reference internal" href="../generator/Ninja.html#generator:Ninja" title="Ninja"><code class="xref cmake cmake-generator docutils literal notranslate"><span class="pre">Ninja</span></code></a> and the Makefile
generators.  It is ignored by other generators.</p>
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